Audio device security system

The invention relates to an audio device and to an audio device security system for installation in a motor vehicle with a vehicle security system 2,3,4. An audio device 1 such as a radio has circuitry 21 to detect a connection to the vehicle power supply, a microprocessor 11 to inhibit the operatio...

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Bibliographic Details
Main Authors NORTON, ALAN, LOEBACH, WERNER, DORNER, GUENTER, KOPICKI, THOMAS LEE, BURNHAM, ROBERT JOHN, FELTEN, PAUL VINZENZ, HAYTON, KEITH ANDREW
Format Patent
LanguageEnglish
French
German
Published 10.05.2000
Edition7
Subjects
ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE
CHECKING-DEVICES
GENERATING RANDOM NUMBERS
PERFORMING OPERATIONS
PHYSICS
REGISTERING OR INDICATING THE WORKING OF MACHINES
TIME OR ATTENDANCE REGISTERS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
VOTING OR LOTTERY APPARATUS
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Summary:The invention relates to an audio device and to an audio device security system for installation in a motor vehicle with a vehicle security system 2,3,4. An audio device 1 such as a radio has circuitry 21 to detect a connection to the vehicle power supply, a microprocessor 11 to inhibit the operation of the audio device after an interruption of the connection, an interface 6 and a connection to a bus 5,9,10 for communicating data between the audio device 1 and the vehicle security system 2,3,4, and a data verification unit 15 with a non-volatile memory 13 for verifying data communicated to the audio device. Following an interruption of the connection the audio device is automatically reset to operational if the data are communicated and verified, and if the data are not communicated or not verified the audio device may only be reset manually.
Bibliography:Application Number: EP19960307257